Anion stabilised hypercloso-hexaalane Al6H6

Simon J. Bonyhady; David Collis; Nicole Holzmann; Alison J. Edwards; Ross O. Piltz; Gernot Frenking; Andreas Stasch; Cameron Jones

doi:10.1038/s41467-018-05504-x

Anion stabilised hypercloso-hexaalane Al₆H₆

Simon J. Bonyhady, David Collis, Nicole Holzmann, Alison J. Edwards, Ross O. Piltz, Gernot Frenking, Andreas Stasch, Cameron Jones

School of Chemistry

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

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Abstract

Boron hydride clusters are an extremely diverse compound class, which are of enormous importance to many areas of chemistry. Despite this, stable aluminium hydride analogues of these species have remained staunchly elusive to synthetic chemists. Here we report that reductions of an amidinato-aluminium(III) hydride complex with magnesium(I) dimers lead to unprecedented examples of stable aluminium(I) hydride complexes, [(^ArNacnac)Mg]₂[Al₆H₆(Fiso)₂] (^ArNacnac = [HC(MeCNAr)₂]^-, Ar = C₆H₂Me₃-2,4,6 Mes; C₆H₃Et₂-2,6 Dep or C₆H₃Me₂-2,6 Xyl; Fiso = [HC(NDip)₂]^-, Dip = C₆H₃Prⁱ2-2,6), which crystallographic and computational studies show to possess near neutral, octahedral hypercloso-hexaalane, Al₆H₆, cluster cores. The electronically delocalised skeletal bonding in these species is compared to that in the classical borane, [B₆H₆]^2-. Thus, the chemistry of classical polyhedral boranes is extended to stable aluminium hydride clusters for the first time.

Original language	English
Article number	3079
Pages (from-to)	1-6
Number of pages	6
Journal	Nature Communications
Volume	9
DOIs	https://doi.org/10.1038/s41467-018-05504-x
Publication status	Published - 6 Aug 2018

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Andreas Stasch
- as411st-andrews.acuk
- School of Chemistry - Reader in Chemistry
Person: Academic

Anion stabilised hypercloso-hexaalane Al6H6 (crystallography dataset)
Bonyhady, S. J. (Creator), Collis, D. (Creator), Holzmann, N. (Creator), Edwards, A. J. (Creator), Piltz, R. O. (Creator), Frenking, G. (Creator) & Stasch, A. (Creator), Cambridge Crystallographic Data Centre, 21 Aug 2018
https://dx.doi.org/10.5517/ccdc.csd.cc1zflrr and 6 more links, https://dx.doi.org/10.5517/ccdc.csd.cc1zflss, https://dx.doi.org/10.5517/ccdc.csd.cc1zfltt, https://dx.doi.org/10.5517/ccdc.csd.cc1zflvv, https://dx.doi.org/10.5517/ccdc.csd.cc1zflww, https://dx.doi.org/10.5517/ccdc.csd.cc1zflxx, https://dx.doi.org/10.5517/ccdc.csd.cc1zflyy (show fewer)
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Cite this

@article{cfe6bcc706a54d11babb684b4cb5392e,

title = "Anion stabilised hypercloso-hexaalane Al6H6",

abstract = "Boron hydride clusters are an extremely diverse compound class, which are of enormous importance to many areas of chemistry. Despite this, stable aluminium hydride analogues of these species have remained staunchly elusive to synthetic chemists. Here we report that reductions of an amidinato-aluminium(III) hydride complex with magnesium(I) dimers lead to unprecedented examples of stable aluminium(I) hydride complexes, [(ArNacnac)Mg]2[Al6H6(Fiso)2] (ArNacnac = [HC(MeCNAr)2]-, Ar = C6H2Me3-2,4,6 Mes; C6H3Et2-2,6 Dep or C6H3Me2-2,6 Xyl; Fiso = [HC(NDip)2]-, Dip = C6H3Pri2-2,6), which crystallographic and computational studies show to possess near neutral, octahedral hypercloso-hexaalane, Al6H6, cluster cores. The electronically delocalised skeletal bonding in these species is compared to that in the classical borane, [B6H6]2-. Thus, the chemistry of classical polyhedral boranes is extended to stable aluminium hydride clusters for the first time.",

author = "Bonyhady, {Simon J.} and David Collis and Nicole Holzmann and Edwards, {Alison J.} and Piltz, {Ross O.} and Gernot Frenking and Andreas Stasch and Cameron Jones",

note = "The authors gratefully acknowledge financial support from the Australian Research Council (C.J. and A.S.), the U.S. Air Force Asian Office of Aerospace Research and Development (grant FA2386-18-1-0125 to C.J.), Deutsche Forschungsgemeinschaft (FR 641/25-2) (G.F.), and Director, Bragg Institute, ANSTO, 2011 approval of DB 1959 (A.J.E. and C.J.).",

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doi = "10.1038/s41467-018-05504-x",

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journal = "Nature Communications",

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AU - Bonyhady, Simon J.

AU - Collis, David

AU - Holzmann, Nicole

AU - Edwards, Alison J.

AU - Piltz, Ross O.

AU - Frenking, Gernot

AU - Stasch, Andreas

AU - Jones, Cameron

N1 - The authors gratefully acknowledge financial support from the Australian Research Council (C.J. and A.S.), the U.S. Air Force Asian Office of Aerospace Research and Development (grant FA2386-18-1-0125 to C.J.), Deutsche Forschungsgemeinschaft (FR 641/25-2) (G.F.), and Director, Bragg Institute, ANSTO, 2011 approval of DB 1959 (A.J.E. and C.J.).

PY - 2018/8/6

Y1 - 2018/8/6

N2 - Boron hydride clusters are an extremely diverse compound class, which are of enormous importance to many areas of chemistry. Despite this, stable aluminium hydride analogues of these species have remained staunchly elusive to synthetic chemists. Here we report that reductions of an amidinato-aluminium(III) hydride complex with magnesium(I) dimers lead to unprecedented examples of stable aluminium(I) hydride complexes, [(ArNacnac)Mg]2[Al6H6(Fiso)2] (ArNacnac = [HC(MeCNAr)2]-, Ar = C6H2Me3-2,4,6 Mes; C6H3Et2-2,6 Dep or C6H3Me2-2,6 Xyl; Fiso = [HC(NDip)2]-, Dip = C6H3Pri2-2,6), which crystallographic and computational studies show to possess near neutral, octahedral hypercloso-hexaalane, Al6H6, cluster cores. The electronically delocalised skeletal bonding in these species is compared to that in the classical borane, [B6H6]2-. Thus, the chemistry of classical polyhedral boranes is extended to stable aluminium hydride clusters for the first time.

AB - Boron hydride clusters are an extremely diverse compound class, which are of enormous importance to many areas of chemistry. Despite this, stable aluminium hydride analogues of these species have remained staunchly elusive to synthetic chemists. Here we report that reductions of an amidinato-aluminium(III) hydride complex with magnesium(I) dimers lead to unprecedented examples of stable aluminium(I) hydride complexes, [(ArNacnac)Mg]2[Al6H6(Fiso)2] (ArNacnac = [HC(MeCNAr)2]-, Ar = C6H2Me3-2,4,6 Mes; C6H3Et2-2,6 Dep or C6H3Me2-2,6 Xyl; Fiso = [HC(NDip)2]-, Dip = C6H3Pri2-2,6), which crystallographic and computational studies show to possess near neutral, octahedral hypercloso-hexaalane, Al6H6, cluster cores. The electronically delocalised skeletal bonding in these species is compared to that in the classical borane, [B6H6]2-. Thus, the chemistry of classical polyhedral boranes is extended to stable aluminium hydride clusters for the first time.

U2 - 10.1038/s41467-018-05504-x

DO - 10.1038/s41467-018-05504-x

M3 - Article

SN - 2041-1723

VL - 9

SP - 1

EP - 6

JO - Nature Communications

JF - Nature Communications

M1 - 3079

ER -

Anion stabilised hypercloso-hexaalane Al6H6

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Anion stabilised hypercloso-hexaalane Al6H6 (crystallography dataset)

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Anion stabilised hypercloso-hexaalane Al₆H₆